There's not enough space on the front page for all the good things we want to read. I'm not interested in expending extra effort to rescue marginal stories with a low likelihood of generating a good conversation. The people most invested in these kinds of stories seem to be almost the least invested in HN's rubric of curious conversation.
I don't call any of the shots around here, but I think I speak for a bunch of different users who flag this way.
I didn't ask you to expend effort in rescuing stories. I took issue with the way you expend effort in burying stories, even before the comment section turns out to go sideways:
> I didn't flag (or see) that story, but I would have.
Remember though: we're not having this conversation so you can persuade me to change how I use the site. I'm just one doofus here. Wha ye need tae worry about are the t'ousand doofuses standing behind me. (_The Devil's Own_, 1997, starring Brad Pitt and Harrison Ford).